Enumeration Interface -
Enumeration interface used for retrieve the elements one by one from collection.
It makes a read only copy of objects and puts in enumeration. You can retrieve elements only.
Enumeration interface has two methods only.
boolean hasMoreElements() -
This method is used to ensure that enumeration has elements or not. It return true if enumeration has elements otherwise return false.
E nextElement() -
This method is used for retrieve the elements from enumeration. It throws NoSuchElementException if there is no element in enumeration.
There are some classes which implements enumeration Interface.